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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use dom::bindings::codegen::Bindings::CanvasRenderingContext2DBinding;
use dom::bindings::codegen::Bindings::CanvasRenderingContext2DBinding::CanvasRenderingContext2DMethods;
use dom::bindings::global::{GlobalRef, GlobalField};
use dom::bindings::js::{JS, JSRef, Temporary};
use dom::bindings::utils::{Reflector, Reflectable, reflect_dom_object};
use dom::htmlcanvaselement::HTMLCanvasElement;
use geom::point::Point2D;
use geom::rect::Rect;
use geom::size::Size2D;
use canvas::canvas_render_task::{CanvasMsg, CanvasRenderTask, ClearRect, Close, FillRect, Recreate, StrokeRect};
#[dom_struct]
pub struct CanvasRenderingContext2D {
reflector_: Reflector,
global: GlobalField,
renderer: Sender<CanvasMsg>,
canvas: JS<HTMLCanvasElement>,
}
impl CanvasRenderingContext2D {
fn new_inherited(global: &GlobalRef, canvas: JSRef<HTMLCanvasElement>, size: Size2D<i32>) -> CanvasRenderingContext2D {
CanvasRenderingContext2D {
reflector_: Reflector::new(),
global: GlobalField::from_rooted(global),
renderer: CanvasRenderTask::start(size),
canvas: JS::from_rooted(canvas),
}
}
pub fn new(global: &GlobalRef, canvas: JSRef<HTMLCanvasElement>, size: Size2D<i32>) -> Temporary<CanvasRenderingContext2D> {
reflect_dom_object(box CanvasRenderingContext2D::new_inherited(global, canvas, size),
global, CanvasRenderingContext2DBinding::Wrap)
}
pub fn recreate(&self, size: Size2D<i32>) {
self.renderer.send(Recreate(size));
}
}
impl<'a> CanvasRenderingContext2DMethods for JSRef<'a, CanvasRenderingContext2D> {
fn Canvas(self) -> Temporary<HTMLCanvasElement> {
Temporary::new(self.canvas)
}
fn FillRect(self, x: f64, y: f64, width: f64, height: f64) {
let rect = Rect(Point2D(x as f32, y as f32), Size2D(width as f32, height as f32));
self.renderer.send(FillRect(rect));
}
fn ClearRect(self, x: f64, y: f64, width: f64, height: f64) {
let rect = Rect(Point2D(x as f32, y as f32), Size2D(width as f32, height as f32));
self.renderer.send(ClearRect(rect));
}
fn StrokeRect(self, x: f64, y: f64, width: f64, height: f64) {
let rect = Rect(Point2D(x as f32, y as f32), Size2D(width as f32, height as f32));
self.renderer.send(StrokeRect(rect));
}
}
impl Reflectable for CanvasRenderingContext2D {
fn reflector<'a>(&'a self) -> &'a Reflector {
&self.reflector_
}
}
#[unsafe_destructor]
impl Drop for CanvasRenderingContext2D {
fn drop(&mut self) {
self.renderer.send(Close);
}
}
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